The EasyCare Scaletec Plus product is a multipurpose stain and scale remover, that targets and prevents calcium, iron, copper, manganese, and scum stains. The scale formations are pulled by the solution from the pool surfaces and redissolved into the pool water which is when it is filtered away. In addition to it removing scale from pool surfaces, it also cleans and protects salt cell generators to help maximize it's chlorine output.